New reflecting materials for the construction of hard x-ray focusing telescopes based on Bragg diffraction

Giovanni Pareschi; Filippo Frontera; Paola De Chiara; Giuseppe Ferrara; Enrico Costa

doi:10.1117/12.278857

11 July 1997 New reflecting materials for the construction of hard x-ray focusing telescopes based on Bragg diffraction

Giovanni Pareschi, Filippo Frontera, Paola De Chiara, Giuseppe Ferrara, Enrico Costa

Proceedings Volume 3113, Grazing Incidence and Multilayer X-Ray Optical Systems; (1997) https://doi.org/10.1117/12.278857
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Bragg diffraction with mosaic crystals is one of the techniques proposed to realize focusing telescopes for hard x- ray (greater than 10 keV) photons. The best candidate material for this application is pyrolytic graphite. Indeed, this crystal is characterized by a very high reflection efficiency, even if it is produced on a very limited scale. In this paper we investigate the possible use of other materials, with a larger commercial availability. In particular we propose the use of polymeric crystalline films. These materials are extremely attractive not only for their lower costs than pyrolytic graphite, but also because they are well suited for good mechanical processing. Here we discuss perspectives and problems related to the construction of Bragg telescopes based on polymeric fibers.

Citation Download Citation

Giovanni Pareschi, Filippo Frontera, Paola De Chiara, Giuseppe Ferrara, and Enrico Costa "New reflecting materials for the construction of hard x-ray focusing telescopes based on Bragg diffraction", Proc. SPIE 3113, Grazing Incidence and Multilayer X-Ray Optical Systems, (11 July 1997); https://doi.org/10.1117/12.278857

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